Role of phosphatase and tensin homolog in pathogenesis of ameloblastoma: An immunohistochemical study
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Date
2020-07
Journal Title
Journal ISSN
Volume Title
Publisher
Wolters Kluwer India Pvt. Ltd.
Abstract
Background: Altered molecular signaling pathways in ameloblastoma have been identified to play a pivotal role in the mechanism of oncogenesis, differentiation, and tumor progression. Phosphatidylinositol 3-kinase/protein kinase B/mammalian target of rapamycin pathway is one of the signaling pathways that are associated with the pathogenesis of ameloblastoma. Phosphatase and tensin homolog (PTEN) controls cell migration and proliferation. It monitors the level of the Akt and maintains cellular integrity. The present study was aimed to study the immunoexpression of PTEN in ameloblastoma to understand its role in the pathogenesis of ameloblastoma. Materials and Methods: Twenty cases of ameloblastoma and ten cases of normal tooth germ were subjected to immunohistochemical staining against PTEN. Results: Strong PTEN immunopositivity was seen in the tooth germs, while weak positivity was seen in the ameloblastoma. The immunoscore for PTEN was calculated by adding the percentage score and the intensity score. Seventeen cases showed the reduced PTEN expression in the epithelial component of ameloblastoma. The unpaired t-test showed a statistically significant difference in the mean PTEN immunoscore in tooth germ and ameloblastoma. Conclusion: The study showed reduced PTEN immunoreactivity, which plays a role in the pathogenesis of ameloblastoma, through Akt pathway
Description
Keywords
Ameloblastoma, immunohistochemistry, phosphatase and tensin homolog, tooth germs
Citation
Narayan Bhaskar, Urs Aadithya B, Augustine Jeyaseelan, Singh Hanspal. Role of phosphatase and tensin homolog in pathogenesis of ameloblastoma: An immunohistochemical study. Journal of Cancer Research and Therapeutics. 2020 Jul; 16(3): 513-516